:root {
  --blue-900: #0B3FAE;
  --blue-800: #1557C8;
  --blue-700: #1F73E0;
  --blue-500: #2597F4;
  --blue-100: #EAF4FF;
  --green: #74D85C;
  --green-dark: #22C55E;
  --white: #fff;
  --ink: #101828;
  --muted: #667085;
  --line: #DCE7F6;
  --bg: #F4F8FE;
  --shadow: 0 24px 70px rgba(13, 70, 170, .18);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(
      circle at top left,
      rgba(37, 151, 244, .14),
      transparent 32rem
    ),
    linear-gradient(180deg, #F7FBFF 0%, #EEF5FF 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 251, 255, .84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(220, 231, 246, .75);
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.25rem;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(21, 87, 200, .25);
}

.nav-links {
  display: flex;
  gap: 26px;
  color: var(--muted);
  font-weight: 700;
  font-size: .95rem;
}

.nav-links a:hover {
  color: var(--blue-800);
}

/* HERO */

.hero {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 650px;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 0px;
  align-items: start;
  padding: 54px 22px 52px;
}
.hero-content {
  padding-top: 72px;
}

.badge {
  width: fit-content;
  padding: 10px 16px;
  border: 1px solid rgba(37, 151, 244, .22);
  border-radius: 999px;
  background: rgba(255, 255, 255, .8);
  color: var(--blue-800);
  font-weight: 800;
  box-shadow: 0 10px 30px rgba(21, 87, 200, .08);
}

.hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: .96;
  letter-spacing: -.07em;
  color: var(--ink);
}

.hero p {
  max-width: 610px;
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
  align-items: center;
}

.store-button,
.donate-button {
  min-height: 58px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  transition: .2s ease;
}

.store-button {
  gap: 12px;
  padding: 10px 18px;
  background: #071B40;
  color: var(--white);
  box-shadow: 0 18px 36px rgba(7, 27, 64, .18);
}

.store-button:hover,
.donate-button:hover {
  transform: translateY(-2px);
}

.store-button small {
  display: block;
  font-size: .68rem;
  opacity: .82;
  line-height: 1;
  font-weight: 700;
}

.store-icon {
  font-size: 1.7rem;
  line-height: 1;
}

.donate-button {
  padding: 0 26px;
  color: var(--white);
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  box-shadow: 0 18px 36px rgba(34, 197, 94, .24);
}

.hero-visual {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}

.glow {
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(37, 151, 244, .35),
    transparent 68%
  );
  filter: blur(8px);
}

.hero-logo {
  width: min(410px, 78vw);
  border-radius: 90px;
  filter: drop-shadow(0 40px 70px rgba(11, 63, 174, .34));
  animation: float 5s ease-in-out infinite;
}

.floating-card {
  position: absolute;
  border-radius: 22px;
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(255, 255, 255, .86);
  box-shadow: var(--shadow);
  padding: 18px 22px;
  backdrop-filter: blur(16px);
}

.floating-card strong {
  display: block;
  color: var(--blue-900);
  font-size: 1.45rem;
}

.floating-card span {
  color: var(--muted);
  font-weight: 800;
}

.card-one {
  left: 18px;
  bottom: 72px;
}

.card-two {
  right: 4px;
  top: 86px;
}

/* GENERAL SECTIONS */

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 72px 22px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding-top: 18px;
}

.stats div {
  background: rgba(255, 255, 255, .8);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 26px;
  box-shadow: 0 16px 45px rgba(13, 70, 170, .08);
}

.stats strong {
  display: block;
  color: var(--blue-800);
  font-size: 1.8rem;
  margin-bottom: 6px;
}

.stats span {
  color: var(--muted);
  font-weight: 800;
}

.section-heading {
  text-align: center;
  max-width: 710px;
  margin: 0 auto 38px;
}

.section-heading span,
.cta span {
  color: var(--green-dark);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
  font-weight: 950;
}

.section-heading h2,
.cta h2 {
  margin: 10px 0 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -.04em;
}

/* FEATURES */

.feature-grid,
.review-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card,
.review-card {
  background: rgba(255, 255, 255, .86);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 18px 52px rgba(13, 70, 170, .09);
}

.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  color: var(--blue-800);
  background: var(--blue-100);
  font-size: 1.65rem;
  margin-bottom: 18px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.feature-card p,
.review-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

/* APP SCREENSHOTS */

.screenshots {
  overflow: hidden;
}

.phone-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 28px;
  padding-top: 32px;
}

.screenshot-image {
  width: 285px;
  height: 570px;
  border-radius: 34px;
  overflow: hidden;
  flex-shrink: 0;
  background: #fff;
  border: 1px solid rgba(220, 231, 246, .9);
  box-shadow: 0 30px 70px rgba(16, 24, 40, .18);
  transition:
    transform .3s ease,
    box-shadow .3s ease;
}

.screenshot-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.screenshot-image:first-child {
  transform: rotate(-3deg);
}

.screenshot-image:last-child {
  transform: rotate(3deg);
}

.featured-screenshot {
  transform: translateY(-26px) scale(1.03);
  box-shadow: 0 38px 85px rgba(11, 63, 174, .22);
  z-index: 2;
}

.screenshot-image:hover {
  transform: translateY(-8px);
  box-shadow: 0 38px 90px rgba(16, 24, 40, .24);
}

.featured-screenshot:hover {
  transform: translateY(-34px) scale(1.03);
}

/* REVIEWS */

.review-grid {
  grid-template-columns: repeat(3, 1fr);
}

.stars {
  color: #FBBF24;
  letter-spacing: .08em;
  margin-bottom: 14px;
}

.review-card strong {
  display: block;
  margin-top: 18px;
  color: var(--blue-900);
}

/* CTA */

.cta {
  max-width: 1180px;
  margin: 72px auto;
  padding: 56px;
  border-radius: 38px;
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  background:
    radial-gradient(
      circle at top right,
      rgba(116, 216, 92, .34),
      transparent 25rem
    ),
    linear-gradient(135deg, var(--blue-900), var(--blue-700));
  color: #fff;
  box-shadow: 0 35px 85px rgba(11, 63, 174, .24);
}

.cta h2 {
  max-width: 660px;
}

.cta .store-button {
  background: #fff;
  color: #071B40;
}

.donate-button.light {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
}

/* FOOTER */

.footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 30px 22px 46px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-weight: 700;
}

.footer div {
  display: flex;
  gap: 20px;
}

/* ANIMATION */

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-14px);
  }
}

/* CONTACT PAGE */

.contact-page {
  max-width: 1050px;
}

.contact-intro {
  max-width: 650px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 28px;
  align-items: stretch;
}

.contact-info-card,
.contact-form-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: 36px;
  box-shadow: 0 24px 70px rgba(13, 70, 170, 0.1);
}

.contact-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: var(--blue-100);
  color: var(--blue-800);
  font-size: 1.7rem;
  margin-bottom: 24px;
}

.contact-info-card h3,
.contact-form-card h3 {
  margin: 0 0 12px;
  color: var(--blue-900);
  font-size: 1.55rem;
  letter-spacing: -0.025em;
}

.contact-info-card > p,
.form-description {
  margin: 0 0 28px;
  color: var(--muted);
  line-height: 1.7;
}

.contact-detail {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.contact-detail span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 900;
}

.contact-detail a {
  color: var(--blue-800);
  font-size: 1.05rem;
  font-weight: 800;
}

.contact-detail p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.contact-highlight {
  margin-top: 18px;
  padding: 22px;
  border-radius: 22px;
  background: var(--blue-100);
  border: 1px solid rgba(37, 151, 244, 0.18);
}

.contact-highlight strong {
  display: block;
  color: var(--blue-900);
  margin-bottom: 8px;
}

.contact-highlight p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.92rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 800;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #F9FBFF;
  color: var(--ink);
  padding: 15px 16px;
  font-family: inherit;
  font-size: 0.96rem;
  outline: none;
}

.form-group input,
.form-group select {
  min-height: 52px;
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  background: #fff;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(37, 151, 244, 0.12);
}

.contact-submit {
  min-height: 56px;
  border: none;
  border-radius: 17px;
  padding: 0 24px;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(
    135deg,
    var(--blue-900),
    var(--blue-700)
  );
  box-shadow: 0 18px 36px rgba(21, 87, 200, 0.22);
  transition: .2s ease;
}

.contact-submit:hover {
  transform: translateY(-2px);
}

/* TABLET */

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    text-align: center;
  }

  .badge,
  .hero p,
  .hero-actions {
    margin-left: auto;
    margin-right: auto;
  }

  .stats,
  .feature-grid,
  .review-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .phone-row {
    flex-wrap: wrap;
    gap: 24px;
  }

  .screenshot-image:first-child,
  .screenshot-image:last-child,
  .featured-screenshot {
    transform: none;
  }

  .screenshot-image:hover,
  .featured-screenshot:hover {
    transform: translateY(-6px);
  }

  .cta {
    flex-direction: column;
    text-align: center;
    margin-left: 22px;
    margin-right: 22px;
  }
}

/* CONTACT TABLET */

@media (max-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* MOBILE */

@media (max-width: 680px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 52px;
  }

  .hero h1 {
    font-size: 3.2rem;
  }

  .hero-actions,
  .cta-actions {
    justify-content: center;
  }

  .stats,
  .feature-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .phone-row {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }

  .screenshot-image {
    width: min(100%, 310px);
    height: auto;
    aspect-ratio: 285 / 570;
    border-radius: 28px;
  }

  .screenshot-image:first-child,
  .screenshot-image:last-child,
  .featured-screenshot,
  .screenshot-image:hover,
  .featured-screenshot:hover {
    transform: none;
  }

  .cta {
    padding: 36px 24px;
  }

  .footer {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    align-items: center;
  }

  .contact-info-card,
  .contact-form-card {
    padding: 28px 22px;
    border-radius: 26px;
  }
}